IS31LT3380 Datasheet PDF - Lumissil 40V/1.2A LED DRIVER Specs

IS31LT3380 - 40V/1.2A LED DRIVER

Datasheet Summary

Description

The IS31LT3380 is a continuous mode inductive step-down converter, designed for driving a single LED or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage.

Features

Multi-modes switch dimming.
Up to 1.2A output current.
High efficiency (up to 98%).
Wide input voltage range: 8.5V to 40V.
Internal 40V power switch.
Simple low parts count.
Typical 5% output current accuracy.
Up to 1MHz switching frequency.
Inherent LED open-circuit/short-circuit protection.
Thermal shutdown protection circuitry.
SOP-8 package.

Datasheet Details

Part number	IS31LT3380
Manufacturer	Lumissil
File Size	581.34 KB
Description	40V/1.2A LED DRIVER
Datasheet	IS31LT3380 Datasheet
Additional preview pages of the IS31LT3380 datasheet.

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Full PDF Text Transcription

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IS31LT3380 40V/1.2A LED DRIVER WITH SWITCH DIMMING September 2011 GENERAL DESCRIPTION The IS31LT3380 is a continuous mode inductive step-down converter, designed for driving a single LED or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The chip operates from an input voltage between 8.5V and 40V and provides an output current up to 1.2A. The IS31LT3380 includes a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current. The IS31LT3380 includes an integrated output switch which has a very low conducting impedance to ensure high system efficiency. The IS31LT3380 has switch dimming function.

Published: Jul 16, 2024 |